General definition of concealed wood

1979 edition of Cihai holds that "wood buried in soil for a long time due to stratum changes is called' black wood', also known as' black wood sand'. Generally speaking, it is mostly Chinese fir, which is hard and durable. In the past, it was considered as a precious wood for making coffins. " It's cloudy in the north of the mountain and the south of the water. Generally, people born in Shanbei or autumn and winter are called shady trees. Shaded wood is obviously different from dark wood. Yin wood is born on the ground, and dark wood is buried underground.

In the forum of Big-eyed Black Cow Thief Union, the essence of dark wood is carbonized wood (naturally carbonized wood of some special tree species under special geographical conditions), which is between carbon and wood and has its unique wood properties; Whether it is gloomy or not generally depends on the degree of carbonization. Too much carbonization will turn into coal. Because dark wood is generally black, it is called "ebony" in the image of Sichuan, and later became the common name of dark wood, which is completely different from ebony in China mahogany standard. Ancient sunken wood (dark wood), also known as oolong wood, ebony, sunken wood, carbonized wood, oriental Shenmu, etc. , is a kind of wood that sank in water and soil in ancient times. In ancient times, a large area of precious wood in virgin forests was attacked by major natural disasters such as earthquakes, flash floods and mudslides, and became dead wood residues buried deep in rivers, lakes and the seabed. With the passage of time, these dead wood roots were soaked and ground in the sediment at the bottom of the water, which changed the original physical properties: the inherent fat and sugar of wood were completely dissolved in water, eliminating the living space of moths and bacteria. Some are corroded by sediment at the bottom of the water, which strengthens the texture beauty of the material; Others become strong and upright, showing a dignified posture, forming a simple and dignified effect. Its colors are also very different, including brown, gray, purple and black, as well as red outside and black inside or black yellow heart.

The ancient sunken wood is obviously "carbonized", showing the black color of coal sample, which is strange and wonderful. According to the detection of scientific research institutions, ancient sunken trees were buried deep underground for 3000 to 12000, and some even reached tens of thousands of years; What's more commendable is that it is not deformed, heavy and dense, and will not be eaten by insects. Some ancient sunken trees can be compared with rosewood, which can be called the essence of trees and the soul of trees. Therefore, the world regards ancient sinking wood as a treasure to ward off evil spirits, accept blessings and accept houses, and there is a saying that "although there is a box full of gold, it is not as good as ebony". Ancient sunken wood is a treasure left by nature to human beings and a non-renewable scarce resource. It is difficult to find ancient sunken wood with good material.

On the morning of June 20 18, nearly 50 dark trees were salvaged from Ximen Desert Island Wharf in Anqing, Anhui Province, and one of them, "Tree King", weighed 2 1 ton. A large number of dark trees have been continuously salvaged in Anqing section of the Yangtze River, which has attracted the attention of relevant experts. Shaded wood is not only a kind of Chinese fir, but also a general term for many kinds of wood that have been buried underground for a long time and can be used as utensils. These Woods are characterized by moisture-proof, insect-proof, anti-corrosion, fragrance and heavy oil. There are many kinds, mainly cypress, Chinese fir, nanmu, Fraxinus mandshurica, wild litchi, bitter catalpa, runnan, iron pear and so on. Dark wood has different names in all parts of the country. It is called "Langmu" and "Shuijiangmu" in the Songhua River Basin in Northeast China, and "Ebony" in Sichuan (the main hidden wood is generally dark in color). There is also an ebony art museum in Chengdu, Sichuan. But in fact, Sichuan does not produce ebony, which is produced in Africa, South Asia and Southeast Asia. The so-called "ebony" in Sichuan is actually a kind of gloomy wood, which is quite different in concept and essence and cannot be confused.